CPM Homework Help : CCA Problem 2-67

Each part (a) through (d) below represents a different tile pattern. For each one, determine how the pattern is growing and the number of tiles in Figure 0. Homework Help ✎

Hint (a):
How many more squares does Figure 3 have than Figure 2?

Hint (b):
Make a slope triangle between two points on the graph to find the slope, or the growth rate.
Answer (b):
Growth rate: $−2$

$y=3x−14$
Answer (c):
Number of tiles in Figure 0: $−14$

$x$
$−3$
$−2$
$−1$
$0$
$1$
$2$
$3$
$y$
$18$
$13$
$8$
$3$
$−2$
$−7$
$−12$
Hint (d):
What is the difference between each $y$ -value?
What is the value of $y$ when $x$ is $0$ ?

$x$	$−3$	$−2$	$−1$	$0$	$1$	$2$	$3$
$y$	$18$	$13$	$8$	$3$	$−2$	$−7$	$−12$